> early human interface guidelines were wary of the concept of lighting
Someone needs to go out and patent using multiple ambient light sensors to detect where light sources are relative to a screen, then shade skeuomorphic elements accordingly.
Some pre-7 versions of iOS would adjust the sheen on certain graphics (like one of the Settings icons, if memory serves) based on the gyroscope, so as you rotated the device the specular highlights would appear to move. Not exactly the same, but similar spirit.
Someone needs to go out and patent using multiple ambient light sensors to detect where light sources are relative to a screen, then shade skeuomorphic elements accordingly.